在页面中看不见的表单元素是( )。 A: <input type="password"></input> B: <input type="radio"></input> C: <input type="hidden"></input> D: <input type="reset"></input>

下列属性哪一个能够实现层的隐藏（ ）。 A: display:false B: display:hidden C: display:none D: display:" "

下面哪些方法可以清除浮动？（多选） A: clear:both; B: overflow:hidden; C: 为父盒子设置height属性 D: .clearfloat:after{display:block;clear:both;content:"";visibility:hidden;height:0}.clearfloat{zoom:1}

（）属性能够实现层的隐藏。 A: display：false B: display：none C: display：hidden D: display：" &quot

Word中插入数学公式的方法是（）。 A: "插入"→"形状"→"公式" B: "开发工具"→"公式" C: "插入"→"公式"→"插入新公式" D: "引用"→"插入"→"公式"

中国大学MOOC: Hidden line should intersect hidden line with dash.

Hidden line should intersect hidden line with dash. A: 正确 B: 错误

定义并初始化一个用于存放我们国家的四个直辖市的数组cityName，四个直辖市为：北京，上海，天津，重庆. 正确的是_________ A: String[] cityName=new String[4]{"北京","上海","天津","重庆"}; B: String[] cityName=new String[]{"北京","上海","天津","重庆"}; C: String[] cityName={"北京","上海","天津","重庆"}; D: String cityName = new String[4] { "北京", "上海", "天津", "重庆" };

已知有一个名为names的空列表,如何向其中添加old_driver,rain,jack,shanshan,peiqi,black_girl 元素？ A: names.append("old_driver","rain","jack","shanshan","peiqi","black_girl") B: names.extend("old_driver","rain","jack","shanshan","peiqi","black_girl") C: names.insert("old_driver","rain","jack","shanshan","peiqi","black_girl") D: names.extend(["old_driver","rain","jack","shanshan","peiqi","black_girl"])

以下哪个选项是正确的json数据格式： A: { "id": 2, "userName": admin, "passWord": 12345, "email": admin@qq.com} B: { id: 2, userName: "admin", passWord: "12345", email: "admin@qq.com"} C: { "id": 2, "userName": "admin", "passWord": "12345", "email": "admin@qq.com",} D: { "id": 2, "userName": "admin", "passWord": "12345", "email": "admin@qq.com"}